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| author | Paul E. McKenney <paulmck@kernel.org> | 2023-05-16 16:18:32 +0300 |
|---|---|---|
| committer | Paul E. McKenney <paulmck@kernel.org> | 2023-07-15 01:02:57 +0300 |
| commit | 822e42509997cfc8582ab1108eef1a280524b26a (patch) | |
| tree | a5a37ababe6006f8bdc2f89897964ba120c6bcde /tools/testing/selftests/rcutorture | |
| parent | 06c2afb862f9da8dc5efa4b6076a0e48c3fbaaa5 (diff) | |
| download | linux-822e42509997cfc8582ab1108eef1a280524b26a.tar.xz | |
torture: Scale scftorture memory based on number of CPUs
As the number of CPUs increases, the number of outstanding no-wait
smp_call_function() handlers also increases, so that the default of
2G of memory is not always sufficient on 80-CPU systems. This commit
therefore scales the amount of memory specified to qemu based on the
number of CPUs specified to the scftorture test instance.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Diffstat (limited to 'tools/testing/selftests/rcutorture')
| -rwxr-xr-x | tools/testing/selftests/rcutorture/bin/torture.sh | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/testing/selftests/rcutorture/bin/torture.sh b/tools/testing/selftests/rcutorture/bin/torture.sh index 5a2ae2264403..9fa6526067f0 100755 --- a/tools/testing/selftests/rcutorture/bin/torture.sh +++ b/tools/testing/selftests/rcutorture/bin/torture.sh @@ -376,8 +376,10 @@ fi if test "$do_scftorture" = "yes" then + # Scale memory based on the number of CPUs. + scfmem=$((2+HALF_ALLOTED_CPUS/16)) torture_bootargs="scftorture.nthreads=$HALF_ALLOTED_CPUS torture.disable_onoff_at_boot csdlock_debug=1" - torture_set "scftorture" tools/testing/selftests/rcutorture/bin/kvm.sh --torture scf --allcpus --duration "$duration_scftorture" --configs "$configs_scftorture" --kconfig "CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --memory 2G --trust-make + torture_set "scftorture" tools/testing/selftests/rcutorture/bin/kvm.sh --torture scf --allcpus --duration "$duration_scftorture" --configs "$configs_scftorture" --kconfig "CONFIG_NR_CPUS=$HALF_ALLOTED_CPUS" --memory ${scfmem}G --trust-make fi if test "$do_rt" = "yes" |